Manufacture of horseshoes.



H. LANGE & K. METTE.

MANUFACTURE OF HORSESHOES. APELIQATION FILED AUGZS, 9N. RENEWED OCT- 6, 19!?- 1,246,440. PatentedANov. 13,1917/ oniuon j, I

HERMANN LANGE AND KONSTAN'IINMETTEQOF PETROGRAD, RUSSIA.

MANUFACTURE OF I-IORSESHQES.

Specification of Letters Patent.

Patented Nov. 13,1917.

i ti filed August 25, 1314, Serial No. 858,535. Renewed Octohc rfi 1917. Serial No. 195,207.

To all whom it may concern:

Be it known that we, Hnioraxn Laser, a subject of the Emperor of Germany, and Koxsraxrrx Mnr'rn, a subject of the Emperor of Russia, both residing at YVass. Ostrow, l7 Linie No. 52, Petrograd, Russia, have invented certain new and useful Improvements in the Manufacture otl-lorseshoes; and we :10 hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to the manufacture of horse-shoes, and has for its object to provide the novel method of making the same, hereinafter described.

The improved method consists in first producing a bar provided with a central lon gitudinal rib and a longitudinal rib disposed at either side of the central longitudinal rib, and then cutting the bar transversely into blanksfrom which the shoes are formed by bending the blanks to bring the heel calk for-med at one-end of the blank by the transverse cutting of the rib at one side of the bar into proper relation with the heel calk similarly formed at the other end of the blank. During the bending operation of the blank, the ends thereof are preferably attenuated ordrawn out to produce a taper at the heel extremities of the shoe It has heretofore been proposed to manufacture horse-shoes. by rolling out bar-iron longitudinally into, the desired E-shapod profile by means of specially toothed rollers. This method, however, is unsatisfactory, in that the calk projections or the. like cannot be rolled to sufiicient height, and, owing to the nature of the rolling operation, the side faces of the projections do not extend at right angles to the face of the bar. As these projections easily stick and cling in the recesses in the rollers, special ejecting devices have to be arranged at this point on the rollers.

, In the present improved method, these defects are obviated by; the use of cylindrical rollers, torn ed with smooth annular grooves. By means of such rollers, a fiat bar with longitudinal ribs or project ons is rolled out, so that the use-of ejecting devices on the rollers is not. necessary. The ribs can be rolled out, of adequate height and with side faces; disposed at right angles to he in o i the The invention is illustrated in the accomformed by suitable means, such as diagrammatically illustrated in the same figure;

Fig. 5 is a plan view, partly in section, of one :torm of machine which may be used for bending the cut blanks j A flat barof iron or other material, from which the horse-shoes are-to be made, is first produced by passing the iron through "a pair of cylindrical rollers a and b suitably mounted in an appropriate supporting structure c, and. one of which is provided with annular recesses cl, (Z and 65, while the other is provided with a single annular recess e. The extremities of the roller provided with the three recesses (Z, (Z and d are of such diameter that they will contact with the other. roller, as shown at f, there'- by producing a confined passbetween the rollers, the annular recesses being so formed as to produce the longitudinal ribs on the bar as it enters the pass, as clearly shown in Fig. 2.

The shoe blanks are then cut fromthe longitudinal bar, as indicated by the dotted lines in Fig. 2, the cut blank being indicated at g, in Fig.3. 7 \Vhen the blanks are so cut from the bar in Fig. 2, the provision of the longitudinal ribs on the bar results in the projections h at the extremities of the blank, whichprojections subsequently produce the heel-calks of the. shoe, as will hereinafter appear, anda central projection i, which produces the toe-calk. The longiw tudinal rib provided on the opposite face at the bar, in Fig, 2, produces, when the blank is cut frointhe bar, a projection. j,

wh ch is later shaped into the toe-clip,

will also hereinafter; appear.

The blank shown in'Fign 3 is then.. sub

ie t d to a fo g a ti n hr any repro priate apparatus, a forging die being reri'ssen edmlf' at aeqme ie eee the blanks will not be interfered with. The

blank 7 is placed in the machine with the projection 2' abutting against the member 3. Suitable horizontal guides 5 are provided on the base or bed 1 of the machine, and in these guides are mounted the slidable heads 6 and 7, one being provided at each side of the die Q. Mounted in the sliding'heads (l and 7, are the roller carriers 8 and 9, which are so carried by the slidable heads 6 and 7, that they are movable longitudinally of themselves, and transversely'of the slidable heads 6 and 7. This may be accomplished by mounting the roller carriers 7 8 and 9 in appropriately formed openings passing transversely through the heads 6 and 7. Each roller carrier is provided at its opposite ends with a roller, the outer of which, to wit, that shown at 10, is adapted I to cooperate with the removable cam-plates 11. The inner rollers 12 are adapted to cooperate with the shoe blank and to bend the same around the die 2. Each sliding head 6 and 7 is also provided with a re-. cessed or cut-out portion 12, adapted to receive the extremities of the shoe blank. A. third sliding head 13 is mounted between the heads 6 and 7 on the guides 14 and removably carries the pressing die 14.

The three heads 6, 7 and 13 are preferably actuated by means of the worm shafts l5 and 16, those shown at 15 being associated with the heads 6 and 7, and that shown at 16 being associated with the head 13. These worm shafts are suitably mounted in the bed or base of the machine and engage appropriate depending portions of the sliding heads, so that a rotary movement of the worm shafts results in a sliding movement of the heads on the guides 5 and 11. Each worm shaft is provided at its extremity with a beveled gear 17, which meshes with two beveled gears 18, one being dis-- posed at either side of the gear 17. The gears 18 are mounted loose upon a driving shaft 19, and are adapted to be connected therewith for rotation thereby, by a suit-' able clutch mechanism consisting of a sleeve 20 disposed between the two beveled gears 18 of each set, and provided at its opposite faces with clutch teeth adapted to engage cooperating teeth provided on the adjacent faces of the beveled gears 18. The sleeves In the preferred form, this maineeeeo 20 are keyed to the shaft 19, and when in one extreme position, areadapted to drive one of the beveled gears 18, and when in the other extreme position are adapted to drive the other beveled gear 18. In the central 7 position of the sleeves 20, both beveledgcars 18 of each set are adapted to remain idle. It is obvious that the direction of rotation of the beveled gear 17 is dependent upon which beveled gear 18 is operatively con- 7 nected therewith, and when the sleeves 20 are in one extreme position, the sliding heads 6, T and 13 will be moved in one direction, and when said sleeves are in the other extreme position, said sliding heads will be moved in the opposite direction. The clutch sleeves 20 are preferably automatically shifted by mechanism not shown in the drawing.

The shaft 19 is preferably driven by a pulley 21, one section of which is mounted loosely upon the shaft 19, and the other of which is'fixed thereto, so that by shifting a driving belt thereon, the machine may be started and stopped in the well-known manner. r

The operation of the machine is as follows: v

7 After the shoe blank is placed in the position shownin Fig. 10, the clutch sleeves 20 are shifted to connect one or the other of the beveled gears 18 with the driving shaft 19, thereby producing the rotation of the central beveled gears 17 in the proper direction. This results in a forward movement of the sliding heads 6, 7 and 13, the heads 6 and 7 of which start bending the shoe blank 9 around the die The inner rollers 12, by coming into contact with the blank g, reduces friction, and prevents injury to the blank, besides pressing all parts of the shoe blank near the toe-portion thereof into engagem nt with the die 2, in an obvious manner. The die 1% presses the blank firmly I against the counter-die 2. The sliding heads 6 and 7, in advancing, cause the roller carriers 8 and 9 to be moved longitudinally of themselves and transversely of the heads 6 and 7'by the cam-plates 11. The longitudinal movement of the roller carriers 8 and 9 by the cam-plates causes each roller 12 to travel in a path almost'parallel with the adjacent face of the die 2. The cam face of each cam-plate is so constructed, however, that the inner roller 12 of each roller carrier will gradually approach the die 2, as the heads 6 and '7 near the end of their stroke, thereby producing the attenuating or drawing out action mentioned in the beginning of the specification.

The clutch sleeves '20 then reverse the direction of rotation of the beveled gears 17, and cause the sliding heads 6, 7 and 13 to return to their initial positions. jection 3 of the die 2 may then be swung to 1 such a position that it will not interfere with the discharge of the completed shoe from the machine. the machine while the projection 3 is in its shifted position, and when said projection 3 is returned to its normal position, shown in the drawings, all is in readiness for a repetition of the cycle of operations, hereinbefore described.

\Vhat we claim is 1. The method of making horse-shoes, which consists in taking a bar having a central longitudinal rib and a longitudinal rib at each side of the bar and cutting the bar transversely into blanks having projections resulting from the transverse cutting of said ribs, and then bending the cut blanks to the desired horseshoe shape in a plane normal to said projections.

2. The method of making horse-shoes, which consists in rolling a flat bar with a longitudinal central rib and a longitudinal A new blank is fed to rib disposed at eachside of the bar, cutting the bar transversely to form blanks having projections resulting from the transverse cutting of said ribs, and then bending the cut blanks to the desired horse-shoe shape in a plane normal to said projections.

3. The method of making horse-shoes, which consists in rolling a flat bar With a longitudinal central rib and a longitudinal rib disposed at each side of the bar, then cutting the bar at right angles to its longitudinal axis to form blanks, and bending the cut blanks into the desired horse-shoe shape.

In testimony whereof we affix our signatures, in presence of two witnesses.

Witnesses M. KNoPuUss, GEORGE ABENDT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

